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KR-20260064844-A - Display device, electronic device including the same and method for manufacturing a display device

KR20260064844AKR 20260064844 AKR20260064844 AKR 20260064844AKR-20260064844-A

Abstract

An embodiment of the present invention discloses a display device comprising: a mask layer including a first mask layer and a second mask layer disposed spaced apart from each other; a substrate disposed on the first mask layer and the second mask layer; a pixel circuit layer disposed on the substrate to overlap with the first mask layer; a wiring layer disposed on the substrate to overlap with the second mask layer; and a light-emitting diode disposed on the pixel circuit layer.

Inventors

  • 전형일
  • 이규정
  • 태창일

Assignees

  • 삼성디스플레이 주식회사

Dates

Publication Date
20260508
Application Date
20241029

Claims (20)

  1. A mask layer comprising a first mask layer and a second mask layer spaced apart from each other; A substrate disposed on the first mask layer and the second mask layer; A pixel circuit layer disposed on the substrate to overlap with the first mask layer; A wiring layer disposed on the substrate to overlap with the second mask layer; and A display device comprising: a light-emitting diode disposed on the pixel circuit layer.
  2. In paragraph 1, A display device in which, in cross-section, the width of the first mask layer is the same as the width of the pixel circuit layer.
  3. In paragraph 1, A display device in which, in cross-section, the width of the second mask layer is the same as the width of the wiring layer.
  4. In paragraph 1, The above substrate is, First base layer; and A display device comprising a first barrier layer disposed on the first base layer.
  5. In paragraph 4, A display device in which the first barrier layer is in contact with the pixel circuit layer, and the first base layer is in contact with the mask layer.
  6. In paragraph 4, The above substrate is, A second base layer disposed on the first barrier layer; and It further includes a second barrier layer disposed on the second base layer; and A display device in which the second barrier layer is in contact with the pixel circuit layer, and the first base layer is in contact with the mask layer.
  7. In paragraph 4, A display device having an etching selectivity ratio of the first base layer to the mask layer of 40 or more.
  8. In paragraph 4, A display device in which the first barrier layer overlaps with the first mask layer and is spaced apart from the second mask layer.
  9. In paragraph 1, A display device comprising at least one material among TCO, metal, and silicon oxide, wherein the above mask layer comprises
  10. A mask layer comprising a first mask layer and a second mask layer spaced apart from each other; A substrate disposed on the first mask layer and the second mask layer; A pixel circuit layer disposed on the substrate to overlap with the first mask layer; A wiring layer disposed on the substrate to overlap with the second mask layer; and A light-emitting diode disposed on the pixel circuit layer; comprising On cross-section, The width of the first mask layer is the same as the width of the pixel circuit layer, and An electronic device in which the width of the second mask layer is the same as the width of the wiring layer.
  11. Step of placing a first layer on a carrier substrate; A step of placing a first mask layer on the first layer; A step of placing a second mask layer on the first layer so as to be spaced apart from the first mask layer; A step of placing a substrate on the first layer to cover the first mask layer and the second mask layer; A step of arranging a pixel circuit layer on the substrate so as to overlap with the first mask layer; A step of arranging a wiring layer on the substrate so as to overlap with the second mask layer; A step of placing a light-emitting diode on the pixel circuit layer; A step of placing a carrier film on the light-emitting diode; Step of removing the carrier substrate; Step of etching the first layer; A step of etching the substrate so as to remove a portion of the substrate that is spaced apart from the first mask layer and the second mask layer; and A method for manufacturing a display device comprising the step of removing the carrier film.
  12. In Paragraph 11, The step of placing the above substrate is, Step of placing a first base layer on a first mask layer and a second mask layer; and A method for manufacturing a display device comprising the step of arranging a first barrier layer on the first base layer so as to overlap with the first mask layer.
  13. In Paragraph 12, A method for manufacturing a display device, wherein the etching selectivity ratio of the first base layer to the first mask layer is 40 or higher.
  14. In Paragraph 12, The step of placing the above substrate is, A step of placing a second base layer on the first base layer to cover the first barrier layer; and A method for manufacturing a display device, further comprising the step of arranging the second barrier layer on the second base layer so as to overlap with the first mask layer.
  15. In Paragraph 11, A step of attaching a first encapsulation layer to the first mask layer and the second mask layer; and A method for manufacturing a display device, further comprising the step of placing a second encapsulation layer on the light-emitting diode.
  16. In Paragraph 11, A method for manufacturing a display device, wherein the step of placing the first mask layer and the step of placing the second mask layer are performed simultaneously.
  17. In Paragraph 11, A method for manufacturing a display device, wherein the step of arranging the pixel circuit layer and the step of arranging the wiring layer are performed simultaneously.
  18. In Paragraph 11, A method for manufacturing a display device, wherein the step of etching the first layer and the step of etching the substrate are performed simultaneously.
  19. In Paragraph 11, A method for manufacturing a display device, wherein, in cross-section, the width of the first mask layer is the same as the width of the pixel circuit layer.
  20. In Paragraph 11, A method for manufacturing a display device, wherein, in cross-section, the width of the second mask layer is the same as the width of the wiring layer.

Description

Display device, electronic device including the same and method for manufacturing a display device Embodiments of the present invention relate to a display device, such as a flexible display device. As display devices that visually display electrical signals advance, various display devices with excellent characteristics such as thinness, lightness, and low power consumption are being introduced. For example, flexible display devices that can be folded or rolled into a roll shape are being introduced. Recently, research and development on display devices of various structures, such as stretchable display devices that can change into various shapes, is actively underway. FIG. 1 is a schematic perspective view of a display device according to one embodiment of the present invention. FIGS. 2a and FIGS. 2b are perspective views showing the display device of FIG. 1 extended in a first direction. FIG. 2c is a perspective view showing the display device of FIG. 1 extended in a second direction. FIG. 2d is a perspective view showing the display device of FIG. 1 extended in the first direction and the second direction. FIG. 2e is a perspective view showing the display device of FIG. 1 extended in a third direction. FIG. 3 is a schematic plan view of a display device according to one embodiment of the present invention. FIG. 4a is a plan view of part IV of FIG. 3 as a part of a display device according to one embodiment of the present invention. FIG. 4b is a plan view of part IV of FIG. 3 as a part of a display device according to one embodiment of the present invention. FIG. 4c is a plan view of the IV portion of FIG. 3 as a part of a display device according to one embodiment of the present invention. FIG. 5 is a cross-sectional view schematically showing a first island portion and a first bridge portion disposed in the display area of a display device according to one embodiment of the present invention. FIGS. 6a to 6c are equivalent circuit diagrams of subpixels of a display device according to one embodiment of the present invention. FIG. 7a is a cross-sectional view schematically showing a light-emitting element of a display device according to one embodiment of the present invention. FIG. 7b is a cross-sectional view schematically showing a light-emitting element of a display device according to one embodiment of the present invention. FIG. 8a is an enlarged plan view of the first island portion of a display device according to one embodiment of the present invention. FIG. 8b is a plan view showing the arrangement of wiring on the first bridge portion of a display device according to one embodiment of the present invention. FIGS. 9 and FIGS. 10 are schematic cross-sectional views of a display device according to one embodiment of the present invention. FIG. 11 is a schematic flowchart of a method for manufacturing a display device according to one embodiment of the present invention. FIGS. 12a to 12e are schematic cross-sectional views of a display device according to one embodiment of the present invention. FIGS. 13a to 13g are schematic perspective views illustrating embodiments of an electronic device including a display device according to one embodiment of the present invention. The present invention is capable of various modifications and may have various embodiments; specific embodiments are illustrated in the drawings and described in detail in the detailed description. The effects and features of the present invention, and the methods for achieving them, will become clear by referring to the embodiments described below in detail together with the drawings. However, the present invention is not limited to the embodiments disclosed below but can be implemented in various forms. Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings. When describing with reference to the drawings, identical or corresponding components are given the same reference numerals, and redundant descriptions thereof will be omitted. In the following embodiments, terms such as first, second, etc. are used not in a limiting sense, but for the purpose of distinguishing one component from another component. In the following examples, singular expressions include plural expressions unless the context clearly indicates otherwise. In the following embodiments, terms such as "include" or "have" mean that the features or components described in the specification are present, and do not preclude the possibility that one or more other features or components may be added. In the following embodiments, when a part such as a film, region, or component is described as being on or above another part, it includes not only cases where it is directly on top of another part, but also cases where another film, region, or component is interposed in between. In the drawings, the size of components may be exaggerated or reduced for convenience of explanation. For example, the size and thickn